72597389 has 8 divisors (see below), whose sum is σ = 73800000. Its totient is φ = 71403552.

The previous prime is 72597383. The next prime is 72597397. The reversal of 72597389 is 98379527.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72597389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72597383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15662 + ... + 19760.

It is an arithmetic number, because the mean of its divisors is an integer number (9225000).

Almost surely, 2^72597389 is an apocalyptic number.

It is an amenable number.

72597389 is a deficient number, since it is larger than the sum of its proper divisors (1202611).

72597389 is a wasteful number, since it uses less digits than its factorization.

72597389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4387.

The product of its digits is 952560, while the sum is 50.

The square root of 72597389 is about 8520.4101427103. The cubic root of 72597389 is about 417.1641703974.

The spelling of 72597389 in words is "seventy-two million, five hundred ninety-seven thousand, three hundred eighty-nine".